all that stuff israel. if you had a phone with you, you could press a button and legal little trail there. when you showed up you could see that this is what people had done. that starts to be a compelling way of thinking how computers cancer to be more of a conduit of the lenses of your friends in the people you trust and anybody in the world rather than an internet connection with a screen on top of it. >> won the presuppositions of that is that you need a persistent identity that is attached to every person in your life. that has a memory. this thing has to be searchable and be in place over all the times in troops and things. the uc that as a novel view of identity or are you replicating something that is occurring in the real world? >> so phones are something you have with you all the time. you only have one phone and you do not share with people. your the one person who uses your phone unless you are sharing some 1's photograph. it contains all your information. the applications you use. facebook, we